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Question
A 150 m long train is moving with constant velocity of 12.5 m/s. Find time taken to cross the bridge of length 850 m
Solution
Length of the train = 150 m
Constant velocity of the train = 12.5 m/s
The time taken to cross the bridge of length 850 m
The equation of motion is y = 12.5x – 150
To find the time taken to cross the bridge of length 850 m,
Put y = 850
850 = 12.5x – 150
12.5x = 850 + 150 = 1000
x = `1000/12.5`
= `10000/125`
= 80 sec
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